Device Collections
The Network constructor can be passed a CollectionInterface.
This collection handles the Sonos devices that are available on your network, there are two implementations that ship with the library:
# Default collection that searches the local network for devices
$devices = new \duncan3dc\Sonos\Devices\Discovery();
# Basic collection that allows you to manually add devices
$devices = new \duncan3dc\Sonos\Devices\Collection();
$devices->addIp("192.168.1.4");
$devices->addIp("192.168.1.5");
# Create a network instance using your device collection
$sonos = new \duncan3dc\Sonos\Network($devices);
SSDP Discovery
If you need to use an alternative multicast address for SSDP you can do so using the following method:
$devices = new \duncan3dc\Sonos\Devices\Discovery();
$devices->setMulticastAddress("239.255.255.250");
Or if you have multiple network interfaces you can force which one to use:
$devices->setNetworkInterface("eth0");
To see what interface arguments are available check the PHP documentation on IP_MULTICAST_IF